/Engine/Source/Developer/ToolMenus/Public/ToolMenuEntry.h
static [FToolMenuEntry](API\Developer\ToolMenus\FToolMenuEntry) InitSubMenu ( const [FName](API\Runtime\Core\UObject\FName) InName, const [FToolUIActionChoice](API\Developer\ToolMenus\FToolUIActionChoice) & InAction, const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > & InWidget, const [FNewToolMenuChoice](API\Developer\ToolMenus\FNewToolMenuChoice) & InMakeMenu, bool bShouldCloseWindowAfterMenuSelection )